Minion is a full-text search engine that provides for ranked boolean querying, as well as proximity and relational querying. It provides a simple API for indexing and retrieval as well as for document similarity and document classification operations.
TrueZIP is a Java based virtual file system (VFS) which enables client applications to perform CRUD (Create, Read, Update, Delete) operations on archive files as if they were virtual directories, even with nested archive files in multithreaded environments.
THIS PROJECT HAS MOVED: http://code.google.com/p/flying-saucer/.
Flying Saucer: an all-Java XHTML + CSS Renderer.
The source code is hosted on GitHub, here: http://github.com/flyingsaucerproject/flyingsaucer